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(No Model.) 2 Sheet-Shet 1. G. R. PEARE.

MACHINE FOR STAYING LAYERS 0F FLEXIBLEMATERIAL. No. 333,249. Patented Dec. 29, 1885.

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2 Sheets-Sheet 2.

(No Model.)

a. R. PEARE. MACHINE FORSTAYING LAYERS OF PLEXIBLE MATERIAL.

Patent-ed -Dec. 29, 1885.

UNITED STATES GEORGE R. PEARE, or LYNN, MAss,

PATENT ()EFICE.

ASSIGNOR TO THE GUTTA PEROHA MACHINE FOR STAYING LAYERS OF FLEXIBLE MATERIAL.

SPECIFICATION forming part of Letters Patent No. 333,249, dated December 29, 1885.

Application filed May 18, 18E5. Serial No. 165,920. (No modeLl .To all whom it may concern.-

Be it known that I, GEORGE R. PEARE, of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Staying Layers of Flexible Material, of which the following is a specification.

This invention relates to mechanism for forming flexible stays or lengths of cord or I I0 thread in superposed layers of unvuloanized rubber cloth intended for belting, the ends of said stays being laid upon the surfaces of the belting before vulcanization and secured to said surfaces by the vulcanizing process as 315 described in Letters Patent to John Murphy will now proceed to describe.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of my improved machine.

Fig. 2 represents a plan View of a portion of the cloth-plate or horn. Fig. 3 represents a plan view of the mechanism for giving an irregular movement to the looper.

The same letters of reference indicate the same parts in all the figures.

3 5 In the drawings, A represents the head or frame of the machine, having a projecting horn or work-support, A

I B represents the needle-bar, having ahooked needle, 5.

A represents the shaft that operates the needle-bar, said shaft having the needle-cam G, which reciprocates the needle-bar vertically in a manner well understood.

E represents the resser-bar, having the 5 presser-foot E, and capable of moving vertically in guides in the frame A. To an arm,

F, on the presser-bar E is pivoted a lever, G, the lower end of which is formed at c as a takeoff hook to enter the loop of thread drawn 5o upwardly through the work by the needle, and

at c as a shearing-blade.

its cutting-edge. The blade b co-operates with the blade 0, the two forming a pair of shears or scissors.

D represents a disk on the shaft A, having cam-grooves d d.

J K represent levers pivoted at J K to fixed studs on the frame A, and having rollers on their upper ends engaged with the camgrooves d d. -Rods I H connect the lower ends of the levers J K, respectively, with the hook-lever G and the cutter-lever L.

Prepresentsashaft connected with the shaft A by gears O O 0. To the shaft P, under the work-support, are aflixed a disk, R, having a cam-groove, R, and a bevel-gear, w.

f represents a shear-blade affixed to the horn below the work-supporting surface thereof, (the shank f of said blade being secured to the horn, as shown in dotted lines in Fig. 2.) Said blade stands in close proximity to the needle 5 when the latter is depressed.

g represents a movable shear-blade, pivoted at 6 to the fixed blade f, the two blades having intersecting cutting-edges and constituting a pair of shears. The blade 9 is oscillated by means of a lever, j, pivoted at one end to the horn and engaged by a roller, 1', with the cam-groove R, and rod h, connecting the swinging end of said lever with the blade g, the lever j being oscillated by the disk Rand imparting its movement to the blade 9 through the rod h.

d represents a vertical tube journaled in bearings formed in a plate or bracket, V, attached to the frame A, and an arm, m, attached to the horn A The thread used by the machine passes upwardly through this tube nearlyto its upper end,and then passes through a side opening in the tube, and through an eye, 2, in the end of a looper arm, e, affixed to the upper end of the tube and moving therewith. From the loo'per-arm the thread passes inwardly, so that it will be brought across the needle at each descent of the latter, as hereinafter described. Acrank, S, is mounted to rotate loosely on the tube d and is provided with a bevel-gear, a2, meshing with the bevel-gear w on the arbor P.

T represents a gear-segment formed on an arm which is pivoted at y .to the crank S. Said segment meshes with a pinion, U, aflixed to the tube 01*, and is provided with a stud or roller, t, which projects into a cam-groove, V, in the fixed plate or bracket V. The crank S is continuously rotated upon the tube d by the shaft P and bevel-gears a; w, and the segment T, while being revolved or carried around by the crank, is given an irregular independent movement on its pivot by the cam-groove, which causes it to give an irregular rotary movement to the tube d and looperarm e, as hereinafter described.

The operation is as follows: The needle having drawn up a loop of thread through the work, as shown in Fig. 1, the hook-lever G and cutter-lever L are moved forward until the hook c (which is bent or offset so that its point only comes within the path of the needle) removes the loop from the needle, and causes the loop to encircle the cutting portion 0. The lever K is then moved independently by its cam-groove,to cause the blade I) to move toward the co-operating cutting portion 0, thus severing the loop. tated by the mechanism above described in the direction indicated by the arrow 7 in Fig. 3. The cam-groove V. with which the segment is engaged by the roll 0', is formed to gradually recede from the aXis of the crank along the parts marked m a 0, and is about concentric with said axis from 0 to p, and approaches the axis abruptly from 1) tom. This form of the cam causes the segment to turn rapidly on its pivot in the direction indicated bythe arrow 8, Fig. 3, while the roll 2' is moving from p to m of the cam-groove, and thus give the pinion U, tube d, and arm a a complete rotation while the needle is resting at its lowest point of move ment, thereby inserting the thread between the two shear-blades f g and into the throat or hook of the needle, the thread being thus simultaneously put into position to be drawn up by the needle and to be out. While the needle is rising to draw up the loop and descending totake the next loop the rollt' of the The crank S is continuously rosegment is moving through the parts m n 0, which reverse its independent motion on its pivot and cause the pinion U, tube d, and looper e to rotate backwardly with relation to the movement of the crank. The result of this is that the said pinion, tube, and looper actually stand at rest until the needle again reaches its lowest point, when the pinion is again rapidly rotated by the cam portion 0 m. After the needle in its upward movement has nearly drawn up theloop the shear-blade g is moved over the blade f by its operating devices and caused to sever the thread, the-needle having a sufficient upward movement after the thread is cut to cause it to pull upwardly the longer of the two ends formed by the cutting action, thus making said ends of uniform length.

I claim-- 1. The combination of the needle and alooping device therefor, the take-ofl' lever having the take-offhook and cutting-edge, and pivoted to the presser-bar, the cutter-lever pivoted to the takeoff-hook lever, and mechanism, substantially as described, for oscillating said levers, as set forth.

2. The combination of the needle and itsoperating mechanism, the shears or cutters under the work-support, the mechanism for operating said cutters, the looper-arm, and mechanism, substantially as described, for rotating said looper whiletheneedleis depressed to present the thread to the cutters and needle, as set forth.

3. In a machine for staying layers of flexible material, the combination, with the needle and mechanism to operate it, of the rotary tube or arbor d, having the pinion and looper-arm, the continuously-rotated crank journaled in said tube, the segmentgear pivoted to said crank and meshing with said pinion, and the cam-groove in a fixed plate receiving a roll on said segment, as set forth.

In testimony whereof I have signed my name to this specifioation,in the presence of two subscribing witnesses, this 17th day of April, 1885. I

GEORGE R. PEARE. Witnesses:

G. F. BROWN, A. L. WHITE. 

